'use strict';

/**
 * 仓储中心 24 小时发货时效 —— HTTP 路由（2026-10-20 新增）
 * ────────────────────────────────────────────────────────────────────────────
 * GET /api/warehouse-ship-timeliness/list
 *   query:
 *     round  'NOON' | 'AFTERNOON'  手动指定核验轮次；不传按当前时刻自动判定
 *     limit  明细条数上限（默认 500，最大 2000）
 *
 * GET /api/warehouse-ship-timeliness/rounds
 *   只返回今日两轮的描述（页面顶部提示用，不打订单表，秒回）
 *
 * GET /api/warehouse-ship-timeliness/export        （2026-10-27 新增）
 *   「超时未发」明细导出：不分页、不截断，返回本轮全部行（与 /list 同一份缓存）
 *   query: round / force
 *
 * ── 两轮核验完成后推钉钉群（2026-10-27 新增）────────────────────────────────
 * GET  /api/warehouse-ship-timeliness/notify/settings  读配置（加签密钥只回掩码）
 * PUT  /api/warehouse-ship-timeliness/notify/settings  保存配置（加签密钥留空 = 不变）
 * GET  /api/warehouse-ship-timeliness/notify/state     上次推送结果
 * POST /api/warehouse-ship-timeliness/notify/run       立即推送一次（dryRun / probe / force）
 *
 * 挂载见 src/index.js：`/api/warehouse-ship-timeliness` + authMiddleware
 */

const express = require('express');
const {
  getShipTimeliness,
  listShipTimelinessExportRows,
} = require('../services/warehouseShipTimelinessService');
const { describeRounds, CENTERS } = require('../services/warehouseShipTimelinessRegistry');
const {
  getShipTimelinessNotifyAdminConfig,
  getShipTimelinessNotifyRuntimeConfig,
  loadShipTimelinessNotifyState,
  missingFields,
  saveShipTimelinessNotifyConfig,
} = require('../services/warehouseShipTimelinessNotifySettings');
const { pushShipTimelinessNotify } = require('../jobs/warehouseShipTimelinessNotifyJob');

const router = express.Router();

function sendError(res, error, fallback) {
  const status = Number(error?.statusCode) || 500;
  console.error('[WarehouseShipTimeliness]', {
    message: error?.message || fallback,
    code: error?.code || null,
    status,
  });
  res.status(status).json({ success: false, error: error.message || fallback });
}

// 时效总览：每个主仓「超时未发」数量 + 超时订单明细
router.get('/list', async (req, res) => {
  try {
    const data = await getShipTimeliness(req.query || {});
    res.json({ success: true, data });
  } catch (error) {
    sendError(res, error, '加载仓储中心发货时效失败');
  }
});

// 仅轮次信息（不查订单）
router.get('/rounds', async (_req, res) => {
  try {
    res.json({
      success: true,
      data: {
        rounds: describeRounds(new Date()),
        centers: CENTERS.map((c) => ({
          key: c.key,
          name: c.name,
          placeholder: Boolean(c.placeholder),
        })),
      },
    });
  } catch (error) {
    sendError(res, error, '加载核验轮次失败');
  }
});

/**
 * 导出「超时未发」明细：**不分页、不截断**，返回本轮考核口径内的全部行。
 *
 * query: round（同 /list）、force=1（绕过缓存重查）
 *
 * 与 /list 共用 getShipTimeliness（同一份缓存），所以页面刚刷过时这里是秒回。
 * 前端拿到 rows 后按选中的仓在前端过滤 —— 口径与页面完全一致，不需要第二套 filter。
 */
router.get('/export', async (req, res) => {
  try {
    const data = await listShipTimelinessExportRows(req.query || {});
    res.json({ success: true, data });
  } catch (error) {
    sendError(res, error, '导出超时未发明细失败');
  }
});

// ── 两轮核验完成后推钉钉群 ──────────────────────────────────────────────────

// 读配置：加签密钥只回掩码 + 是否已配置，明文永不出后端
router.get('/notify/settings', async (_req, res) => {
  try {
    const [config, state] = await Promise.all([
      getShipTimelinessNotifyAdminConfig(),
      loadShipTimelinessNotifyState(),
    ]);
    res.json({ success: true, data: { ...config, lastState: state || {} } });
  } catch (error) {
    sendError(res, error, '读取发货时效通知配置失败');
  }
});

// 保存配置；加签密钥留空表示「沿用已存的」，不必每次重填
router.put('/notify/settings', async (req, res) => {
  try {
    const data = await saveShipTimelinessNotifyConfig(req.body || {});
    res.json({ success: true, data });
  } catch (error) {
    const status = Number(error?.status) || 400;
    console.error('[WarehouseShipTimeliness] 保存通知配置失败:', error?.message);
    res.status(status).json({ success: false, error: error.message || '保存发货时效通知配置失败' });
  }
});

router.get('/notify/state', async (_req, res) => {
  try {
    const state = await loadShipTimelinessNotifyState();
    res.json({ success: true, data: state || {} });
  } catch (error) {
    sendError(res, error, '读取推送状态失败');
  }
});

/**
 * 立即推送一次（页面「立即推送」/「预览正文」/「测试通道」）。
 * body:
 *   round   'NOON' | 'AFTERNOON'，不传按当前时刻自动判定
 *   dryRun  true = 只组装消息、不发送（返回正文全文，业务先核对口径）
 *   probe   true = 只发一句「通道测试」文本，不查业务数据（验 webhook 通不通）
 *   force   true = 忽略「本轮已推过」（默认手动触发就是 true，除非显式给 false）
 */
router.post('/notify/run', async (req, res) => {
  try {
    const body = req.body || {};
    const dryRun = body.dryRun === true || body.dryRun === 'true';
    const probe = body.probe === true || body.probe === 'true';
    const force = body.force === undefined ? true : (body.force === true || body.force === 'true');
    if (!dryRun) {
      const config = await getShipTimelinessNotifyRuntimeConfig({ forceRefresh: true });
      const missing = missingFields(config);
      if (missing.length) {
        res.status(400).json({
          success: false,
          error: `请先补全并保存：${missing.join(' / ')}`,
          data: { missingFields: missing },
        });
        return;
      }
    }
    const result = await pushShipTimelinessNotify({
      dryRun,
      probe,
      force,
      round: body.round || undefined,
    });
    res.json({ success: true, data: result });
  } catch (error) {
    sendError(res, error, '推送发货时效通知失败');
  }
});

module.exports = router;